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Repair connection structure and repair connection method of hydraulic concrete member expansion joint waterstop

A technology of hydraulic concrete and connection method, applied in water conservancy engineering, marine engineering, construction, etc., can solve the problems of high material and labor cost, time-consuming and labor-intensive, etc., to increase the ability to adapt to seam changes, reduce stress concentration, increase The effect of connection firmness and anti-seepage effect

Inactive Publication Date: 2016-08-24
BEIJING IWHR KHL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The common measure to solve this problem at home and abroad is to remove and replace the entire waterstop, which is time-consuming and laborious, and the material and labor costs are too high

Method used

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  • Repair connection structure and repair connection method of hydraulic concrete member expansion joint waterstop
  • Repair connection structure and repair connection method of hydraulic concrete member expansion joint waterstop
  • Repair connection structure and repair connection method of hydraulic concrete member expansion joint waterstop

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Embodiment Construction

[0042] Such as Figure 2-Figure 4 As shown, when the waterstop 2 pre-embedded in the concrete on both sides of the expansion joint 5 in the hydraulic concrete member 4 is partially damaged, the concrete from the damaged part to the outer surface is chiseled first to form a rectangular groove 6, so that the stop The end 21 of the water belt 2 is exposed (or by cutting off the damaged part to form a relatively neat end 21 on both sides, which is a known method here, so it will not be described in detail), and at the same time pay attention to protecting the remaining undamaged water stop 2, so as not to Damaged by concrete waste. The expansion joint 5 between the ends 21 of the two waterstops 2 is filled with a sealing filling layer 1 made of flexible caulking material (see figure 2 and image 3 ), wherein the height of the sealing filling layer 1 can slightly protrude from the groove surfaces on both sides of the expansion joint 5, preferably to close the opening of the expa...

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Abstract

The invention proposes a connection structure and connection method of hydraulic concrete member expansion joint waterstop, which includes a protective layer and a sealing filling layer, and the sealing filling layer is filled in the expansion joint where the waterstop is damaged. A layer is coated on the outer side of the sealing filling layer and the damaged end of the waterstop, and is combined with the end. The sealing filling layer preferably closes the seam of the damaged part, and can provide the required supporting function for the protective layer. The protective layer can be directly formed by coating a flexible membrane material on site, so as to be closely combined with the end of the waterstop. It is better to apply activator and adhesive between the protective layer and the waterstop. The invention can solve the connection problem of the damaged part of the waterstop in the expansion joint of the hydraulic concrete member, and is simple and easy compared with the conventional process of chiseling and replacing the waterstop, and the performance of the waterstop is intact after the connection.

Description

technical field [0001] The invention relates to a repair or connection structure of a hydraulic concrete component expansion joint waterstop and a corresponding connection method. Background technique [0002] Expansion joints are usually provided on the concrete components of hydraulic structures such as hydropower stations, water conveyance channels, water conveyance tunnels and water conveyance aqueducts. Expansion joints refer to the gaps set in the structure to accommodate the impact of material expansion and contraction deformation on the structure. Common measures to solve the anti-seepage of expansion joints at home and abroad are to pour the two wings of the rubber waterstop or plastic waterstop into the concrete on both sides of the expansion joint, or use flat steel and bolts to seal the rubber waterstop or plastic waterstop into the concrete. The belt is twisted across the seam and pressed on both sides of the seam. Such as figure 1 As shown, the two wings of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B3/16
Inventor 孙志恒何旭升马锋玲鲍志强李敬玮李蓉李萌
Owner BEIJING IWHR KHL
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